void vs undefined (v11)

Revision 11 of this benchmark created by Jeff Watkins on

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Testing in
TestOps/sec
undefined
(function(a) {
 return (a === undefined);
})();
ready
void
(function(a) {
 return (a === void 0);
})();
ready
void2
function b(a) {
 return (a === void 0);
};

b();
ready
typeof
function b(v) {
 return "undefined" === typeof(v);
}

b();
ready
typeof 2
(function(v) {
 return "undefined" === typeof(v);
})();
ready

Revisions

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